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Finding the Fourth Proportional to 497.99, 746.70 and 223.90

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Solution

The fourth proportional to 497.99, 746.70 and 223.90 is: 335.72

Step by Step Solution

  1. Step 1: Write the proportion equation
    497.99 : 746.70 = 223.90 : x
  2. Step 2: Convert to fraction form
    497.99/746.70 = 223.90/x
  3. Step 3: Cross multiply
    497.99x = 746.70 × 223.90
  4. Step 4: Simplify right side
    497.99x = 167,186.13
  5. Step 5: Solve for x
    x = 167,186.13/497.99
  6. Step 6: Final answer
    x = 335.72

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.